perf(test): consolidate web auto-reply suites

src/web/auto-reply/monitor/message-line.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, it } from "vitest";
-import { buildInboundLine } from "./message-line.js";
+import { buildInboundLine, formatReplyContext } from "./message-line.js";
 
 describe("buildInboundLine", () => {
   it("prefixes group messages with sender", () => {
@@ -30,4 +30,53 @@ describe("buildInboundLine", () => {
     expect(line).toContain("Bob (+15550001111):");
     expect(line).toContain("ping");
   });
+
+  it("includes reply-to context blocks when replyToBody is present", () => {
+    const line = buildInboundLine({
+      cfg: {
+        agents: { defaults: { workspace: "/tmp/openclaw" } },
+        channels: { whatsapp: { messagePrefix: "" } },
+      } as never,
+      agentId: "main",
+      msg: {
+        from: "+1555",
+        to: "+1555",
+        body: "hello",
+        chatType: "direct",
+        replyToId: "q1",
+        replyToBody: "original",
+        replyToSender: "+1999",
+      } as never,
+      envelope: { includeTimestamp: false },
+    });
+
+    expect(line).toContain("[Replying to +1999 id:q1]");
+    expect(line).toContain("original");
+    expect(line).toContain("[/Replying]");
+  });
+
+  it("applies the WhatsApp messagePrefix when configured", () => {
+    const line = buildInboundLine({
+      cfg: {
+        agents: { defaults: { workspace: "/tmp/openclaw" } },
+        channels: { whatsapp: { messagePrefix: "[PFX]" } },
+      } as never,
+      agentId: "main",
+      msg: {
+        from: "+1555",
+        to: "+2666",
+        body: "ping",
+        chatType: "direct",
+      } as never,
+      envelope: { includeTimestamp: false },
+    });
+
+    expect(line).toContain("[PFX] ping");
+  });
+});
+
+describe("formatReplyContext", () => {
+  it("returns null when replyToBody is missing", () => {
+    expect(formatReplyContext({} as never)).toBeNull();
+  });
 });